Final answer:
To estimate how long it will take Susan to complete the triathlon, we can calculate the time it takes for each leg of the race and add them together. Susan can swim at an average pace of 2.1 mph, ride her bike at an average of 18.8 mph, and run at 5.1 mph. Adding the times together, it will take Susan approximately 12.26 hours or 12 hours and 16 minutes to complete the triathlon.
Step-by-step explanation:
To estimate how long it will take Susan to complete the triathlon, we can calculate the time it takes for each leg of the race and add them together.
For the swim, Susan can swim at an average pace of 2.1 mph. The distance is 2.4 miles, so it will take her approximately 1.14 hours or 1 hour and 8 minutes.
For the bike ride, Susan rides at an average of 18.8 mph. The distance is 112 miles, so it will take her approximately 5.96 hours or 5 hours and 58 minutes.
For the run, Susan runs at an average of 5.1 mph. The distance is 26.2 miles, so it will take her approximately 5.14 hours or 5 hours and 8 minutes.
Adding the times together, it will take Susan approximately 12.26 hours or 12 hours and 16 minutes to complete the triathlon.